Moving the Goalposts is a Logical Fallacy. Liberal Progressives not only think that they can move the Goal posts they are so invested with their own Personal Authority they think that they themselves are the Goalposts & the Guardians of what is True & False.

You can’t prove it to them, because they refuse to believe it, because they refuse to accept any evidence that proves their prejudices wrong. You have failed to prove your argument.

I have personally observed Atheists reject scientific posts from scientific sources because it Falsified their bias. This wasn’t an isolated incident. Not only can Atheists not debate Rationally they have NO IDEA how science is done or how scientific method works.